264292493 has 2 divisors, whose sum is σ = 264292494. Its totient is φ = 264292492.

The previous prime is 264292439. The next prime is 264292513. The reversal of 264292493 is 394292462.

Together with previous prime (264292439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143688169 + 120604324 = 11987^2 + 10982^2 .

It is a cyclic number.

It is not a de Polignac number, because 264292493 - 2⁶ = 264292429 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264292493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264292393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132146246 + 132146247.

It is an arithmetic number, because the mean of its divisors is an integer number (132146247).

Almost surely, 2^264292493 is an apocalyptic number.

It is an amenable number.

264292493 is a deficient number, since it is larger than the sum of its proper divisors (1).

264292493 is an equidigital number, since it uses as much as digits as its factorization.

264292493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 41.

The square root of 264292493 is about 16257.0751674463. The cubic root of 264292493 is about 641.7436930377.

The spelling of 264292493 in words is "two hundred sixty-four million, two hundred ninety-two thousand, four hundred ninety-three".